The Orlando Sentinel has an article on NASA's current plans for the Vision for Space Explorarion. Which left me wondering if top NASA officals are in denial.
The crews would blast off aboard rockets derived from the space-shuttle fleet and parachute back to Earth in capsules similar to those used during the Apollo program.
Isn’t this the worst possible time to propose we use shuttle derived hardware for the next generation of launch vehicles. The Expendable Tank with its seemingly unsolvable foam problem is at the center for the new launch vehicle. Solving this problem will require a major redesign, so why not start from scratch.
I wonder, which genius thought putting foam on the outside of a launch vehicle was a good idea, in the first place? No one would put foam on the outside of their house or car, it is too delicate. Why in God’s name did NASA think it was a good idea to put on the outside of a launch vehicle?
Another real problem with the new launch vehicle proposal is the plans for what to do on the Moon are so vague.
Pioneers would build a lunar outpost, most likely at the south pole, with living quarters, power plants and communication systems. Expeditions would scavenge the desolate landscape for precious supplies such as fuel and water.
How many pioneers? How long do they plan to stay?
Of course they would require living quarters, power plants and communications systems but what kind?
Is NASA forgetting Life support and radiation protection?
And how exactly do they plan to scavenge fuel and water?
Do they plan to do any science? Astronomy? Geology? Physics? Biology? Dangerous Life science and nanotech we don’t want done in our biosphere?
Will we want to put a Hubble sized telescope on the lunar south pole? I am sure some astronomers will want the data that type of telescope would collect. The Hubble’s optics combined with the Moon’s stability and slow rotation would allow amazing astronomy, but this would require a big launcher. Let's not rule out the posibility before we have had time to consider it.
These questions must be answered BEFORE we decide on a launch system not after. It is clear to everyone that building the shuttle was a big mistake. Let’s not compound the problem by building another bad launch vehicle.
If NASA designs the launch vehicle before the mission, it is almost surely be inadequate or simply wrong. The mission should determine the payloads and the payloads the parameters of the launch vehicle, not the launch vehicle the possible payloads therefore determining the mission, because others would not be possible with the only available launch vehicle. Also determining the launch vehicle first could drive up costs if the dimensions were too small some items would have to be sent up in pieces and assembled in the abrasive lunar dust instead of sent up whole and immediately functional on landing.
With a decade before the next Moon landing there is no need to run into a blind alley in what we know is a bad neighborhood. We should put the shuttle derived heavy lift vehicle plans on the shelf until the plans for the lunar surface have be worked out in detail and agreed upon by everyone required to make them work AND the shuttle has been returned to safe regular flights.
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